Democritus, a Greek philosopher, first developed the idea of atoms (around 460 B.C., I believe).
Hope this helps!
2K + Cl₂ ⇒ 2KCl
2Ca + O₂ ⇒ 2CaO
Answer:
25.6mL NaOH
Explanation:
We are given the Molarity of the solution (
) and the volume of the solution (.02L).
By multiplying the two together, we can find the moles of solution that are reacted with HCl.

This gives us .0082 moles of HCl.
We then find the moles of NaOH that are needed to react with the HCl using the equation.

As HCl and NaCl have a 1:1 ratio, we need .0082 mol of NaOH.
Dividing this value by the Molarity of the solution

Gives us the answer, in Liters (.0256), which we can then divide by 100 convert to mL.
Answer:
Based on Boyle's law, which of the following statements is true for an ideal gas at a constant temperature and mole amount?
A) Pressure is directly proportional to volume.
B) Pressure is inversely proportional to volume. CORRECT ANSWER!!!
C) The number of collisions is independent of pressure.
D) The number of collisions decreases with increase in pressure.
B is the CORRECT answer!!!